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We all know that there are many types of aluminum profiles on the market, and the prices vary greatly. Whether as a manufacturer or user of aluminum profiles, we will pay attention to the price of aluminum profiles. We will pay attention to the price of aluminum profiles. The aspects involved will mainly include the composition, formula, extrusion type and processing of aluminum profiles, etc., which will affect the price increase or decrease of aluminum profiles. Next, I will share with you the factors that affect the price of aluminum profiles. let's see.

A: Material composition of aluminum profiles

Aluminum profiles are various types of aluminum materials made of aluminum as the base material, adding other metal elements, and hot extrusion. The added metal elements are: magnesium, copper, chromium, silicon, zinc, manganese, depending on the amount of alloying elements added. Different types of aluminum profiles differ in type and performance, as well as in different types. Each aluminum profile has a different formula. The alloy elements in different series of aluminum profiles have different standards. In addition to national standards, each manufacturer has its own internal parameters. For example, in the 6063 series aluminum profiles, the aluminum content is 97.35%-9838%, the magnesium content is 0.45%-0.9%, the silicon content is 0.2%-0.6%, and the content of other alloys such as copper, chromium and zinc. All should be less than or equal to 0.1%. Only when this content range is reached can it comply with national regulations. In order to reduce costs, some aluminum profile manufacturers reduce the proportion of alloy elements in the formula to the minimum, which greatly reduces the strength and hardness of the aluminum profiles and completely fails to meet the mechanical properties. Some manufacturers add scrap aluminum or miscellaneous materials to the raw materials. This is one of the reasons why aluminum profiles are cheap. Some aluminum profile manufacturers reduce the proportion of alloying elements in the formula to a minimum, which greatly reduces the strength and hardness of the aluminum profiles and completely exceeds the mechanical properties. Some manufacturers add scrap aluminum or miscellaneous materials to the raw materials. This is one of the reasons why aluminum profiles are cheap. Some aluminum profile manufacturers reduce the proportion of alloying elements in the formula to a minimum, which greatly reduces the strength and hardness of the aluminum profiles and completely exceeds the mechanical properties. Some manufacturers add scrap aluminum or miscellaneous materials to the raw materials. This is one of the reasons why aluminum profiles are cheap.

B: Aluminum smelting furnace

The production process is an interlocking process. After selecting the composition of the aluminum alloy, it is placed in a smelting furnace and heated for casting. The smelting furnace is also very important at this time. There are many styles of smelting furnaces, including round furnace, square furnace, chimney type, chimney type, gas fired type, electric fired type, etc. There are 1 ton and 10 ton. In short, there are all kinds. The quality of aluminum profiles cast by smelting furnaces varies. For example, a stove with a chimney is better than a stove without a chimney. Since the aluminum rod is affected by fuel and raw materials during the heating process, a large amount of waste gas and residue will be produced. For furnaces that emit emissions without a chimney, the waste gas and slag have nowhere to discharge, and can only be discharged back into the aluminum water. The aluminum profiles produced in this way will contain a large number of bubbles inside and the surface will be uneven. The price of this inferior aluminum profile is definitely not expensive.

C: Aluminum profile surface treatment

The surface of the extruded aluminum profile is very thin, only 2-4μm, soft in texture, and has extremely poor corrosion resistance. It easily reacts with oxygen and carbon dioxide in the air to form aluminum oxide and aluminum carbonate. In order to thicken the film layer and strengthen the aluminum profile For corrosion resistance and appearance, surface treatment of aluminum profiles is required. After multiple surface treatments, the thickness of the oxide layer of the aluminum profile reaches more than 10 μm, which can meet the national standard, and some can even exceed the national standard by more than 12 μm. Depending on the model, there are many methods for surface treatment of aluminum profiles, such as anodizing, electrostatic powder spraying, electrophoretic coating, sandblasting oxidation, etc.

Some surface treatments are designed to increase decoration and may or may not be done, such as wood grain transfer. Due to the simple and complex surface treatment process, the prices of aluminum profiles after different surface treatments vary greatly, such as the price of aluminum profiles used for high-end decorative applications after fluorocarbon electrostatic spraying. More expensive. In order to reduce production costs and increase profits, some aluminum profile manufacturers only produce 4-8μm oxide films, while some have no oxide film at all, and even sell them as inferior, resulting in serious price differences.

D: Production process of aluminum profiles

The production of aluminum profiles requires multiple production processes, starting with the heating, extrusion, straightening, aging, surface treatment, and packaging of aluminum rods. Each process has its functions, as well as specified operational requirements and execution standards. Any process will have an impact on the quality of aluminum profiles. For example, there are many impurities in the raw aluminum rods, which will affect the quality of the aluminum substrate after extrusion. The extrusion speed and temperature are not well controlled during extrusion, causing yellowing and bubble defects on the surface of the aluminum profile. The quality of the machine will also affect the extrusion. Effect; time control during aging should be appropriate. It seems that if the manual aging time is shortened, man-hours can be saved. In fact, the hardness of the aluminum profiles produced is low and the price of the aluminum profiles is not enough. It will be relatively cheap, but not as effective.